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were we weren’t we did you didn’t you
at; in on; on on; in at; on
were we weren’t we did you didn’t you
though unless when because
A. where did you park my car what’s the matter with him how can I get to the park when they have finished the work
though unless when because
though unless when because
when though until because
that he realized when he realized he realized did he realize
when though until because
have seen saw see had seen
have ; known; have known did; know; knew did; know; have known have; known; knew